Bottom mounting and a 55 degree installation angle pull these two steps in close to the trailer frame, where a triangular support structure carries the load without the wobble that plagues bolt-on ladders. Q235B carbon steel forms the frame and the surface receives electrophoresis treatment followed by powder coating, a two-stage finish aimed at salt water exposure at the ramp. The base plate accepts left, centre and right positions and clamps to 3 by 3 inch, 3 by 5 inch or 4 by 4 inch cross beams, which covers most common trailer builds. Each step is widened and fitted with a rubber non-slip mat, and rounded edges reduce shin knocks while climbing in wet conditions. A handrail gives a third point of contact so boarding and stepping down both stay controlled. Assembled dimensions are 60.04 by 17.95 by 12.12 inches at 16.97 pounds, and installation needs no frame modification.